Incinerator spark arrester



Aug. 10, 1937. P. e. BEVERIDGE INCINERATOR SPARK ARRESTER Filed Aug. 1, 1935 INVENTOR AT ORNEY Patented Aug. 10, 1937 INCINERATOR SPARK ARREs'rEaj Peter Grover Beveridge, Bremerton, Wash.

Application August 1,

4 Claims;

1935, Serial 15165341245 (01. 2s1 11s) (Granted under theact of March 3, 1883, as

amended April 30,

This invention relates to a spark arrester especially intended for use in incinerators.

Although this invention is capable of general use wherever it is necessary or desirable to eliminate sparks, and incidentally solid particles of smoke or solid particles of the products of combustion, this invention is intended for use on shipboard and more particularly for use on military and naval vessels.

In military and naval vessels it is a military disadvantage to allow any uncontrolled smoke or particles to escape therefrom as such would tend to reveal the location of the vessel. It is likewise a military disadvantage to dispose of garbage by throwing it from aboard; nevertheless, the garbage must be disposed of for sanitary reasons, and with this invention it becomes possible to safely use an incinerator for disposing of garbage or (finer refuse and at the same time avoid the escape of any visible smoke or sparks.

Although spark arresters and smoke consumers were well known prior to the present invention, yet the prior devices were unsuitable for use on military and naval vessels either because of being incapable of being accommodated in the limited space available on board such vessels or because they were too short-lived to operate satisfactorily.

This invention is placed between the incinerator and the smoke uptake or stack and removes the sparks or visible solid particles from the incinerators as the smoke passes from the incinerator to the uptake.

With the above and other objects in view, the invention consists in the construction, combination and arrangement of parts as will be hereinafter more fully described.

Fig. 1 is a side elevational view, partly in section, of this invention; and,

Fig. 2 is an end view looking from the left of Fig. 1, the incinerator having been omitted.

There is shown at III a spark arrester which is in the form of a metal box suitably shaped and lined with fire brick II. The fire brick II is so placed as to form a smoke passage I2 extending through the opposite sides of the box from a flanged entrance I3 at one end which is adapted to be secured to flange I4 of the incinerator I5 to a flanged exit I6 at the other end adapted to be secured to a flange ll of a smoke stack or uptake I8. Extending through the box II) from the rear I9 to the front 20 and above the smoke passage I2 is a water pipe 2| provided with a plurality of spray holes 22, the holes 22 being set at an angle of approximately 15 from the bottom so that water from any suitable 1928; 370 OZG. 757) source, may be sprayed into a curtain of water 23 atanjangle of- 15 toithe, vertical across the smoke passage I2. The smoke and sparks from the incinerator I5 passing through the passage I2 will be completely exposed to this Water curtain 23 and the water curtain will thereby wash the smoke of all sparks or solid particles which will then be collected in a water trap 24 formed at the bottom of the box III. This water trap 24 is provided with a water seal consistingof a bafile 25 so that none of the smoke or fumes can escape thereunder.

The water trap 24 is connected with an extension 26 at the front thereof communicating under the baflle 25 to the water drain pipe 21 as an outlet 28 maintaining the depth of the water in the trap 24 at just above the lower edge of the baflie 25, thereby permitting the seal to be maintained. This extension 26 is provided with a open by the latch 3| when desired, permitting open by the latch 3| when desired, permitting the solid particles in the trap 24 to be removed therefrom periodically when necessary.

A water gage 32, provided on the side of the extension 26 allows the level of the water in the trap 24 to be inspected without opening the cover. The rear wall I9 is provided with an eye-piece 33 hinged thereto as at 34, permitting the smoke passage I2 to be inspected whenever desired. A manhole cover 35 is likewise provided in the rear wall I9, permitting an entrance to the box I0 whenever necessary.

In operation the smoke from the incinerator passing in the direction of the arrester, through the smoke passage I2, is exposed to the water curtain 33, washing out all solid particles and live sparks. Solid particles and live sparks are caught in the trap 24 and the current of water flowing from the trap carries the particles out under the baffle seal 25 collecting them in the extension 26 so that they may be removed therefrom periodically, when necessary, through the opening provided by the cover 29.

The invention described herein may be manufactured and used by or for the Government of the United States of America for governmental purposes without the payment of any royalties thereon or therefor.

I claim:

1. A spark arrester comprising a metallic box, a fire brick lining in said box providing a smoke passage therethrough, a water spray pipe extending across but above said smoke passage through said box and a water trap formed at the bottom of said box, an extension at one side 2. A spark arrester comprisinga metallic box, i

a fire brick lining in said box providing a smoke passage therethrough, a water spray pipeextending across but I above said smoke passage through's'aidbox and a water trap formed at'the bottom of said box, an extension at one side of said box, a baffie in said box dividingsaid extension from said water trap and'pr'oviding a" water seal preventing escape oflanygases thereunder but permitting the waterto flow from the trap to said extension, meansin sai'd extension maintaining the depth of water in saidiext'en- .r

7 holes therein for creating a water curtain across sion and said water trap andsmeanson said extension permitting periodical cleaning out of the water trap.

3-."A device of the-character described for eliminating visible particles from smoke, comprising a chamber having a horizontal smoke passageway extending therethrough, fire brick lining said passageway and forming a recess in the top portion thereof, and a conduit in said recess and placed completely above the path of the smoke through said passageway, said conduit ter trap, fire; brick lining said passageway and c forming a recess in the top portion thereof, and

a' conduit in said recess and placed completely above: said passageway, said conduit having said passageway, which water will fall into said trap.

PETE-R GROVERBEVERIDGE; 

